You can find (مجلة الاثنين والدنيا) dated June 15, 1940, through the following digital resources: Digital Archives and Downloads
If you are looking for a high-quality digital copy for research, the offers old issues in PDF format for purchase. They can be contacted directly via WhatsApp at 002/01009416483 to request specific dates.
: This site frequently uploads high-resolution scans of rare Egyptian publications. While Issue 318 may not be the direct landing page, they maintain a comprehensive index of Al-Ithnayn issues for download. Purchase or Specialty Requests